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fsnotify: Remove useless list deletion and comment 

After removing all the indirection it is clear that

hlist_del_init_rcu(&mark->obj_list);

in fsnotify_destroy_marks() is not needed as the mark gets removed from
the list shortly afterwards in fsnotify_destroy_mark() ->
fsnotify_detach_mark() -> fsnotify_detach_from_object(). Also there is
no problem with mark being visible on object list while we call
fsnotify_destroy_mark() as parallel destruction of marks from several
places is properly handled (as mentioned in the comment in
fsnotify_destroy_marks(). So just remove the list removal and also the
stale comment.

Reviewed-by: Miklos Szeredi <mszeredi@redhat.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Jan Kara 2017-03-15 10:08:28 +01:00
parent 73cd3c33ab
commit 2629718dd2
1 changed files with 0 additions and 6 deletions
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6
fs/notify/mark.c
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@ -620,12 +620,6 @@ void fsnotify_destroy_marks(struct fsnotify_mark_connector *conn)
}
mark = hlist_entry(conn->list.first, struct fsnotify_mark,
obj_list);
/*
* We don't update i_fsnotify_mask / mnt_fsnotify_mask here
* since inode / mount is going away anyway. So just remove
* mark from the list.
*/
hlist_del_init_rcu(&mark->obj_list);
fsnotify_get_mark(mark);
spin_unlock(lock);
fsnotify_destroy_mark(mark, mark->group);